Fix: veliovgroup/Meteor-Files#263 and partial fixes #5

Author: mrauhu

lib/client/fileUpload.js

@@ -99,7 +99,13 @@ Template.afFileUpload.events({
       });
 
       const upload = template.collection.insert(opts, false);
-      const ctx    = AutoForm.getValidationContext(template.formId);
+      let ctx;
+      try {
+        ctx    = AutoForm.getValidationContext(template.formId)
+      } catch {
+        // Fix: "TypeError: Cannot read property '_resolvedSchema' of undefined"
+        ctx = AutoForm.getValidationContext();
+      }
 
       upload.on('start', function () {
         ctx.reset();